Brontolophoraptor

The thunder-crest-thief wrapped in fog, is the name of this big (relative) Lophoraptorid. The species inhabit the slopes and valleys of the Andes. The "bronto" in it's name come from the loud thunder-like roar that it makes in the mating season. they hunt Llamas, sheeps and mountain tapirs (in the evening). during the summer they live near the top of the mountains and build large nests (3m diameter) with grass and stones to lay their eggs. A pair build and breed together. In the winter the male leave and the mother and children move to the valleys.

This lophoraptorid fly high, they often looks like a condor.